paper

Identification of nonlinearity in conductivity equation via Dirichlet-to-Neumann map

arXiv:math-ph/0201022 · doi:10.1088/0266-5611/18/4/309

Abstract

We prove that the linear term and quadratic nonlinear term entering a nonlinear elliptic equation of divergence type can be uniquely identified by the Dirichlet to Neuman map. The unique identifiability is proved using the complex geometrical optics solutions and singular solutions.

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